CN212751843U

CN212751843U - Mobile power supply circuit supporting data exchange

Info

Publication number: CN212751843U
Application number: CN202021707968.5U
Authority: CN
Inventors: 刘林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-03-19
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a support data exchange's portable power source circuit belongs to portable power source circuit field. The utility model discloses a power management module, to the first interface that portable power source charges, more than one second interface that links to each other with the smart machine still includes HUB expansion module, charges/data switching module, wherein, HUB expansion module links to each other with second interface input end, the one end of charging/data switching module respectively, the other end that charges/data switching module links to each other with first interface, power management module's one end respectively with HUB expansion module, first interface electric connection, the power management module other end links to each other with the battery. The utility model has the advantages that: the circuit integrates the functions of charging and data exchange, and solves the problem that two interfaces on the conventional mobile power supply cannot be expanded and the communication is wasted.

Description

Mobile power supply circuit supporting data exchange

Technical Field

The utility model relates to a portable power source circuit especially relates to a portable power source circuit who supports data exchange.

Background

The portable charger integrates power supply and charging functions, and can charge digital equipment such as mobile phones, tablet computers and the like at any time and any place. Generally, the lithium battery cell is used as an electricity storage unit, so that the use is convenient and fast.

However, the current mobile power supply only supports charging and discharging, does not have a data exchange transmission function, and causes waste of the current interface, and if the interface is occupied when the mobile phone is charged, data interaction with other devices cannot be realized, so that a mobile power supply supporting both charging and data exchange is urgently needed.

SUMMERY OF THE UTILITY MODEL

For solving the problem among the prior art, the utility model provides a support data exchange's portable power source circuit.

The utility model discloses a power management module, to the first interface that portable power source charges, more than one second interface that links to each other with the smart machine still includes HUB expansion module, charges/data switching module, wherein, HUB expansion module links to each other with second interface input end, the one end of charging/data switching module respectively, the other end that charges/data switching module links to each other with first interface, power management module's one end respectively with HUB expansion module, first interface electric connection, the power management module other end links to each other with the battery.

The utility model discloses do further improvement, still include the third interface more than 1, charge/data switching module is equipped with the switching unit the same with third interface quantity, the third interface links to each other with a set of data pin of HUB extension module through one of them switching unit, the power pin of third interface links to each other with power management module's one end.

The utility model discloses make further improvement, the third interface is USB digital signal interface.

The utility model discloses make further improvement, still include the fourth interface, the fourth interface links to each other with HUB extension module's data transmission IO pin.

The utility model discloses make further improvement, the fourth interface includes audio frequency analog signal interface and/or storage card interface, the storage card interface includes but not limited to TF card interface or SD card interface.

The utility model discloses do further improvement, work as when the fourth interface is audio frequency analog signal interface, still include audio decoding module, the fourth interface passes through audio decoding module and links to each other with HUB extension module.

The utility model is further improved, the audio analog signal interface comprises an earphone interface CON5 and a microphone interface CON6, wherein,

pin 3 of the earphone interface CON5 is grounded, pin 1 is connected to pin 9HP-OUTL of the decoding chip U7, pin 2 of the earphone interface CON5 is connected to pin 8 HP-OUTL of the decoding chip U7, pin 4 is connected to pin 5 of the microphone interface CON6,

pins

5 and 6 of the earphone interface CON5 are suspended,

pin 3 of the microphone interface CON6 is grounded, pin 1 is connected to pin 7MIC-IN of the decoding chip U7,

pins

2 and 6 of the microphone interface CON6 are suspended, and pin 4 of the microphone interface CON6 is connected to pin 1.

The utility model discloses make further improvement, the second interface is 5pin welding mouth or 5 pin's USB interface, wherein, 1 ground connection of pin of second interface,

2 and 3 link to each other with a set of data transmission pin of HUB expansion module respectively, and pin 4 links to each other with power management module's power output pin, pin 5 of second interface links to each other with the detecting unit that is used for listening the second interface of HUB expansion module.

The utility model discloses make further improvement, the detecting element includes triode Q2 and logic level gate Q1, wherein, triode Q2 'S the G utmost point links to each other with pin 5 of second interface, triode Q2' S the S utmost point ground connection, the D utmost point links to each other with the one end of a resistance and logic level gate Q1 'S the G utmost point respectively, logic level gate Q1' S the S utmost point links to each other with the resistance other end and this resistance other end and power management module 'S power output pin respectively, logic level gate Q1' S the D utmost point links to each other with HUB extension module 'S extension chip U1' S pin 17.

The utility model discloses make further improvement, power management module is including the charge administrative unit and the lithium electricity protection unit that step up that link to each other with the battery respectively.

Compared with the prior art, the beneficial effects of the utility model are that: the interface of the circuit not only supports charging for equipment, but also can support data exchange, thereby supplementing the original standard loss of all interfaces on the product, and solving the defects that all interfaces of the existing mobile power supply product can only supply power and can not expand and the communication and the loss of the communication function; is convenient to use and carry.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a schematic circuit diagram of the data switching module and the HUB expansion module of the present invention;

fig. 3 is a schematic circuit diagram of the first interface, the second interface, the third interface and the power management module of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the fourth interface of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the utility model discloses a power management module, the first interface CON1 that charges to portable power source, more than one second interface CON4 that links to each other with the smart machine still include HUB expansion module, charge/data switching module, wherein, HUB expansion module links to each other with second interface input end, the one end of charging/data switching module respectively, the other end of charging/data switching module links to each other with first interface, power management module's one end respectively with HUB expansion module, first interface electric connection, the power management module other end links to each other with the battery. The smart device of this example may be a cell phone, tablet, etc.

In the embodiment, on the basis of the mobile power supply, the HUB extension module and the charging/data switching module are added, so that the mobile power supply has a data transmission function, and therefore, a mobile power supply interface can be effectively utilized. In the process that the mobile power supply charges the mobile phone, the second interface can be used for data exchange, so that the interface of the intelligent device is expanded, and the defect that the charging and the data exchange cannot be simultaneously realized because the existing intelligent device has only one interface is overcome.

As shown in fig. 2 and 3, the present embodiment further includes 2 USB interfaces CON2 and CON3, and of course, the third interface in the present embodiment may also be other USB digital signal interfaces such as a Type-C interface. The charging/data switching module of this example is provided with the same number of switching units as the third interface, the USB interface CON2 is connected to the pin 5 and the pin 6 of the expansion chip U1 of the HUB expansion module through the switching chip U2, the USB interface CON3 is connected to the pin 9 and the pin 10 of the expansion chip U1 of the HUB expansion module through the switching chip U3, and the power supply of the third interface is provided by the power output terminal of the power management module. The third interface can be externally connected with USB equipment such as a keyboard, a mouse and the like, so that the mobile phone can be controlled. In the occasions such as live broadcast, the intelligent equipment is far away from the user, the intelligent equipment can be operated conveniently, and the intelligent equipment is very convenient to use.

As shown in fig. 4, this example may further include a fourth interface connected to the data transfer I/O pin of the HUB expansion module. The fourth interface in this example may be an audio analog signal interface, a memory card interface including, but not limited to, a TF card interface or an SD card interface, and the like.

As an embodiment of the present invention, the fourth interface of this embodiment is two audio analog signal interfaces that are arranged side by side, and this embodiment further includes an audio decoding module, and the fourth interface is connected to the HUB extension module through the audio decoding module.

In particular, the audio analog signal interface comprises an earphone interface CON5 and a microphone interface CON6, wherein,

pins

5 and 6 of the earphone interface CON5 are suspended,

pins

The microphone interface CON6 in this example is a common earphone interface, in which a spring piece is provided inside to connect the

pins

4 and 5, when a microphone plug is inserted, the spring piece is disconnected, an audio signal is transmitted to the pin 7 of the decoding chip U7 through the microphone interface CON6, and an earphone analog signal is output to the earphone interface CON5 through the

pins

8 and 9 of the decoding chip U7.

When the microphone interface CON6 has no microphone plug inserted, pin 4 of the earphone interface CON5 is connected to pin 4 through pin 5 of the microphone interface CON6 and further connected to the decoding chip U7 through pin 1, the audio signal is transmitted to pin 7 of the decoding chip U7 through the earphone interface CON5 and the microphone interface CON6, and the earphone analog signal is output to the earphone interface CON5 through

pins

8 and 9 of the decoding chip U7, so that the earphone interface CON5 supports the input and output of the audio signal at the same time without affecting the performance and sound quality of the whole circuit.

The audio analog signal interface is arranged, so that the defects that the existing mobile phone has no earphone interface and does not support the traditional earphone interface are overcome, and on the other hand, multiple interfaces are expanded, the circuit is simple, and the performance of the whole circuit cannot be influenced; support smart machine external microphone and earphone simultaneously, the microphone can set up independently, makes its radio reception effect better.

Preferably, as shown in fig. 3, the second interface CON4 of this embodiment is a 5pin soldering port or a 5pin USB interface, and this embodiment may be connected to a mobile phone through a data line, where one end of the data line may be soldered to the 5pin soldering port or may be plugged into the USB interface, and the other end of the data line is provided with a connector matching with the mobile phone. In this embodiment, pin 1 of the second interface CON4 is grounded,

pins

2 and 3 are respectively connected to a set of data transmission pins of the HUB expansion module, pin 4 is connected to a power output pin of the power management module, and pin 5 of the second interface CON4 is connected to a detection unit of the HUB expansion module for detecting the second interface CON 4.

As shown in fig. 2, the detecting unit in this embodiment includes a transistor Q2 and a logic level gate Q1, wherein a G pole of the transistor Q2 is connected to the pin 5 of the second interface, an S pole of the transistor Q2 is grounded, D poles are respectively connected to one end of a resistor and the G pole of the logic level gate Q1, an S pole of the logic level gate Q1 is respectively connected to the other end of the resistor, the other end of the resistor and a power output pin of the power management module, and a D pole of the logic level gate Q1 is connected to the pin 17 of the expansion chip U1 of the HUB expansion module.

When the mobile power supply circuit of the embodiment establishes data communication with the mobile phone, a pin 5CCO has a specific level signal, and the expansion chip U1 switches to the USB expansion mode after recognizing the level signal, opens the data transmission channel, and realizes data transmission through the charging/data switching module.

As shown in fig. 3, the power management module includes a charging boost management unit and a lithium battery protection unit respectively connected to the battery. The battery power supply outputs a voltage suitable for the mainboard through the boost management chip U6, and three indicator lamps LEDs 1-3 are further arranged at the output end of the boost management chip U6 and used for indicating the working state of the battery. In this embodiment, a lithium battery protection chip U5 is further provided between the negative electrode and the positive electrode of the battery, thereby protecting the battery.

Compared with the prior art, the interface of the circuit of the utility model not only supports the charging of the equipment, but also can support the data exchange, thereby supplementing the original standard loss of all interfaces on the product, and solving the defects that all interfaces of the existing mobile power supply product can only supply power and can not expand and communicate and the loss of communication function; is convenient to use and carry.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.

Claims

1. A mobile power supply circuit supporting data exchange, characterized by: including power management module, the first interface that charges to portable power source, more than one second interface that links to each other with the smart machine still includes HUB extension module, charges/data switch module, wherein, HUB extension module links to each other with second interface input end, the one end of charging/data switch module respectively, the other end that charges/data switch module links to each other with first interface, power management module's one end respectively with HUB extension module, first interface electric connection, the power management module other end links to each other with the battery.

2. The mobile power supply circuit supporting data exchange according to claim 1, wherein: the USB interface charging/data switching module is characterized by further comprising more than 1 third interface, the charging/data switching module is provided with switching units the number of which is the same as that of the third interfaces, the third interfaces are connected with a group of data pins of the HUB expansion module through one of the switching units, and a power supply pin of the third interface is connected with one end of the power supply management module.

3. The mobile power supply circuit supporting data exchange according to claim 2, wherein: the third interface is a USB digital signal interface.

4. The mobile power supply circuit supporting data exchange according to claim 1, wherein: the HUB expansion module further comprises a fourth interface, and the fourth interface is connected with a data transmission I/O pin of the HUB expansion module.

5. The mobile power supply circuit supporting data exchange according to claim 4, wherein: the fourth interface includes an audio analog signal interface and/or a memory card interface including, but not limited to, a TF card interface or an SD card interface.

6. The mobile power supply circuit supporting data exchange according to claim 5, wherein: when the fourth interface is an audio analog signal interface, the system further comprises an audio decoding module, and the fourth interface is connected with the HUB expansion module through the audio decoding module.

7. The mobile power supply circuit supporting data exchange according to claim 6, wherein: the audio analog signal interface comprises an earphone interface CON5 and a microphone interface CON6, wherein,

pin 3 of the earphone interface CON5 is grounded, pin 1 is connected to pin 9HP-OUTL of the decoding chip U7, pin 2 of the earphone interface CON5 is connected to pin 8 HP-OUTL of the decoding chip U7, pin 4 is connected to pin 5 of the microphone interface CON6, pins 5 and 6 of the earphone interface CON5 are suspended,

pin 3 of the microphone interface CON6 is grounded, pin 1 is connected to pin 7MIC-IN of the decoding chip U7, pins 2 and 6 of the microphone interface CON6 are suspended, and pin 4 of the microphone interface CON6 is connected to pin 1.

8. A mobile power supply circuit supporting data exchange according to any one of claims 1 to 7, wherein: the second interface is 5pin welding mouth or 5 pin's USB interface, wherein, pin 1 ground connection of second interface, pin 2 and 3 link to each other with a set of data transmission pin of HUB extension module respectively, and pin 4 links to each other with power management module's power output pin, pin 5 of second interface links to each other with the detecting unit that is used for listening the second interface of HUB extension module.

9. The mobile power supply circuit supporting data exchange according to claim 8, wherein: the detection unit comprises a triode Q2 and a logic level gate Q1, wherein the G pole of the triode Q2 is connected with a pin 5 of the second interface, the S pole of the triode Q2 is grounded, the D pole of the triode Q2 is connected with one end of a resistor and the G pole of the logic level gate Q1 respectively, the S pole of the logic level gate Q1 is connected with the other end of the resistor, the other end of the resistor and a power supply output pin of the power supply management module respectively, and the D pole of the logic level gate Q1 is connected with a pin 17 of an expansion chip U1 of the HUB expansion module.

10. A mobile power supply circuit supporting data exchange according to any one of claims 1 to 7, wherein: the power management module comprises a charging and boosting management unit and a lithium battery protection unit which are respectively connected with the battery.